How to Repair Corroded Car Trim Strips?
2 Answers
WD-40 rust inhibitor can penetrate into the capillary pores of metal to remove moisture and dampness, forming an extremely thin and dense protective film to isolate humidity and air. Carburetor cleaner can also be used, but it should be noted that it has strong corrosiveness and may also have a certain impact on the car's paint surface.
I've been driving for quite a while and have encountered chrome trim corrosion several times. Corrosion is usually caused by rainwater or car wash detergent not being cleaned properly. I recommend first using a neutral detergent to remove dirt, then gently sanding the rust spots with 800-grit sandpaper—don't apply too much pressure to avoid scratches. After thorough sanding, apply a specialized metal polishing compound and buff it evenly with a soft cloth to restore shine. Finally, spray a layer of transparent car wax or rust-proof spray as a protective coating. Prevention is key—I always make sure to dry the chrome trim thoroughly after each wash to prevent water accumulation and corrosion points. Small car body components require regular inspection and maintenance to extend their lifespan and reduce repair frequency.